Update the intel chipset driver and the BIOS, after you try those, if the 2nd pcie slot still does not work, then it is broken. No thing you can do.
intel chipset driver https://downloadcenter.intel.com/Detail_Desc.aspx?DwnldID=20775
Will get right on that thanks.
Just to add that the Creative card lights up when inserted into the second slot so it is getting power.